Silverstone Property Group and RWN Real Estate Partners have ponied up $71.5 million for seven adjacent properties at 33rd Street and Third Avenue, their second big purchase in Kips Bay, The Real Deal has learned from insiders.

Silverstone, a real estate investment firm headed by Martin Nussbaum, and RWN, a real estate private equity fund led by Ari Shalam, closed on the purchase yesterday from a company owned in part by Darryl Mallah, an executive with Icon Parking Systems.

Neither Nussbaum nor Shalam responded immediately to TRD’s request for comment; Mallah declined to comment, although a person with ties to the seller confirmed the sale.

The properties include 146 residential apartment units and eight stores, and wrap around the corner with 103 feet on Third Avenue and 217 feet on 33rd Street. The addresses of the buildings are 489, 493 and 495 Third Avenue, and 203, 205, 207 and 211 East 33rd Street, the insiders said. The deal also includes about 60,000 square feet of air rights, they said.